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Summary: Nested Classes | Constants | Ctors | Methods | Inherited Methods

# DatabaseUtils

`public class DatabaseUtils`
`extends Object` ``

java.lang.Object
↳ | android.database.DatabaseUtils

Static utility methods for dealing with databases and `Cursor`s.

## Summary

### Nested classes
`class` | `DatabaseUtils.InsertHelper` This class is deprecated. Use `SQLiteStatement` instead.

### Constants
`int` | `STATEMENT_ABORT` One of the values returned by `getSqlStatementType(java.lang.String)`.
`int` | `STATEMENT_ATTACH` One of the values returned by `getSqlStatementType(java.lang.String)`.
`int` | `STATEMENT_BEGIN` One of the values returned by `getSqlStatementType(java.lang.String)`.
`int` | `STATEMENT_COMMIT` One of the values returned by `getSqlStatementType(java.lang.String)`.
`int` | `STATEMENT_DDL` One of the values returned by `getSqlStatementType(java.lang.String)`.
`int` | `STATEMENT_OTHER` One of the values returned by `getSqlStatementType(java.lang.String)`.
`int` | `STATEMENT_PRAGMA` One of the values returned by `getSqlStatementType(java.lang.String)`.
`int` | `STATEMENT_SELECT` One of the values returned by `getSqlStatementType(java.lang.String)`.
`int` | `STATEMENT_UNPREPARED` One of the values returned by `getSqlStatementType(java.lang.String)`.
`int` | `STATEMENT_UPDATE` One of the values returned by `getSqlStatementType(java.lang.String)`.

### Public constructors
`DatabaseUtils()`

### Public methods
`static void` | `appendEscapedSQLString(StringBuilder sb, String sqlString)` Appends an SQL string to the given StringBuilder, including the opening and closing single quotes.
`static String[]` | `appendSelectionArgs(String[] originalValues, String[] newValues)` Appends one set of selection args to another.
`static final void` | `appendValueToSql(StringBuilder sql, Object value)` Appends an Object to an SQL string with the proper escaping, etc.
`static void` | `bindObjectToProgram(SQLiteProgram prog, int index, Object value)` Binds the given Object to the given SQLiteProgram using the proper typing.
`static ParcelFileDescriptor` | `blobFileDescriptorForQuery(SQLiteStatement prog, String[] selectionArgs)` Utility method to run the pre-compiled query and return the blob value in the first column of the first row.
`static ParcelFileDescriptor` | `blobFileDescriptorForQuery(SQLiteDatabase db, String query, String[] selectionArgs)` Utility method to run the query on the db and return the blob value in the first column of the first row.
`static String` | `concatenateWhere(String a, String b)` Concatenates two SQL WHERE clauses, handling empty or null values.
`static void` | `createDbFromSqlStatements(Context context, String dbName, int dbVersion, String sqlStatements)` Creates a db and populates it with the sql statements in sqlStatements.
`static void` | `cursorDoubleToContentValues(Cursor cursor, String field, ContentValues values, String key)` Reads a Double out of a field in a Cursor and writes it to a Map.
`static void` | `cursorDoubleToContentValuesIfPresent(Cursor cursor, ContentValues values, String column)` Reads a Double out of a column in a Cursor and writes it to a ContentValues.
`static void` | `cursorDoubleToCursorValues(Cursor cursor, String field, ContentValues values)` Reads a Double out of a field in a Cursor and writes it to a Map.
`static void` | `cursorFloatToContentValuesIfPresent(Cursor cursor, ContentValues values, String column)` Reads a Float out of a column in a Cursor and writes it to a ContentValues.
`static void` | `cursorIntToContentValues(Cursor cursor, String field, ContentValues values, String key)` Reads a Integer out of a field in a Cursor and writes it to a Map.
`static void` | `cursorIntToContentValues(Cursor cursor, String field, ContentValues values)` Reads an Integer out of a field in a Cursor and writes it to a Map.
`static void` | `cursorIntToContentValuesIfPresent(Cursor cursor, ContentValues values, String column)` Reads a Integer out of a column in a Cursor and writes it to a ContentValues.
`static void` | `cursorLongToContentValues(Cursor cursor, String field, ContentValues values, String key)` Reads a Long out of a field in a Cursor and writes it to a Map.
`static void` | `cursorLongToContentValues(Cursor cursor, String field, ContentValues values)` Reads a Long out of a field in a Cursor and writes it to a Map.
`static void` | `cursorLongToContentValuesIfPresent(Cursor cursor, ContentValues values, String column)` Reads a Long out of a column in a Cursor and writes it to a ContentValues.
`static void` | `cursorRowToContentValues(Cursor cursor, ContentValues values)` Read the entire contents of a cursor row and store them in a ContentValues.
`static void` | `cursorShortToContentValuesIfPresent(Cursor cursor, ContentValues values, String column)` Reads a Short out of a column in a Cursor and writes it to a ContentValues.
`static void` | `cursorStringToContentValues(Cursor cursor, String field, ContentValues values, String key)` Reads a String out of a field in a Cursor and writes it to a Map.
`static void` | `cursorStringToContentValues(Cursor cursor, String field, ContentValues values)` Reads a String out of a field in a Cursor and writes it to a Map.
`static void` | `cursorStringToContentValuesIfPresent(Cursor cursor, ContentValues values, String column)` Reads a String out of a column in a Cursor and writes it to a ContentValues.
`static void` | `cursorStringToInsertHelper(Cursor cursor, String field, DatabaseUtils.InsertHelper inserter, int index)` Reads a String out of a field in a Cursor and writes it to an InsertHelper.
`static void` | `dumpCurrentRow(Cursor cursor, StringBuilder sb)` Prints the contents of a Cursor's current row to a StringBuilder.
`static void` | `dumpCurrentRow(Cursor cursor, PrintStream stream)` Prints the contents of a Cursor's current row to a PrintSteam.
`static void` | `dumpCurrentRow(Cursor cursor)` Prints the contents of a Cursor's current row to System.out.
`static String` | `dumpCurrentRowToString(Cursor cursor)` Dump the contents of a Cursor's current row to a String.
`static void` | `dumpCursor(Cursor cursor, PrintStream stream)` Prints the contents of a Cursor to a PrintSteam.
`static void` | `dumpCursor(Cursor cursor)` Prints the contents of a Cursor to System.out.
`static void` | `dumpCursor(Cursor cursor, StringBuilder sb)` Prints the contents of a Cursor to a StringBuilder.
`static String` | `dumpCursorToString(Cursor cursor)` Prints the contents of a Cursor to a String.
`static String` | `getCollationKey(String name)` return the collation key
`static String` | `getHexCollationKey(String name)` return the collation key in hex format
`static int` | `getSqlStatementType(String sql)` Returns one of the following which represent the type of the given SQL statement.
`static long` | `longForQuery(SQLiteDatabase db, String query, String[] selectionArgs)` Utility method to run the query on the db and return the value in the first column of the first row.
`static long` | `longForQuery(SQLiteStatement prog, String[] selectionArgs)` Utility method to run the pre-compiled query and return the value in the first column of the first row.
`static long` | `queryNumEntries(SQLiteDatabase db, String table, String selection)` Query the table for the number of rows in the table.
`static long` | `queryNumEntries(SQLiteDatabase db, String table, String selection, String[] selectionArgs)` Query the table for the number of rows in the table.
`static long` | `queryNumEntries(SQLiteDatabase db, String table)` Query the table for the number of rows in the table.
`static final void` | `readExceptionFromParcel(Parcel reply)` Special function for reading an exception result from the header of a parcel, to be used after receiving the result of a transaction.
`static void` | `readExceptionWithFileNotFoundExceptionFromParcel(Parcel reply)`
`static void` | `readExceptionWithOperationApplicationExceptionFromParcel(Parcel reply)`
`static String` | `sqlEscapeString(String value)` SQL-escape a string.
`static String` | `stringForQuery(SQLiteDatabase db, String query, String[] selectionArgs)` Utility method to run the query on the db and return the value in the first column of the first row.
`static String` | `stringForQuery(SQLiteStatement prog, String[] selectionArgs)` Utility method to run the pre-compiled query and return the value in the first column of the first row.
`static final void` | `writeExceptionToParcel(Parcel reply, Exception e)` Special function for writing an exception result at the header of a parcel, to be used when returning an exception from a transaction.

### Inherited methods
From class `java.lang.Object`
`Object` | `clone()` Creates and returns a copy of this object.
`boolean` | `equals(Object obj)` Indicates whether some other object is "equal to" this one.
`void` | `finalize()` Called by the garbage collector on an object when garbage collection determines that there are no more references to the object.
`final Class<?>` | `getClass()` Returns the runtime class of this `Object`.
`int` | `hashCode()` Returns a hash code value for the object.
`final void` | `notify()` Wakes up a single thread that is waiting on this object's monitor.
`final void` | `notifyAll()` Wakes up all threads that are waiting on this object's monitor.
`String` | `toString()` Returns a string representation of the object.
`final void` | `wait(long timeout, int nanos)` Causes the current thread to wait until another thread invokes the `notify()` method or the `notifyAll()` method for this object, or some other thread interrupts the current thread, or a certain amount of real time has elapsed.
`final void` | `wait(long timeout)` Causes the current thread to wait until either another thread invokes the `notify()` method or the `notifyAll()` method for this object, or a specified amount of time has elapsed.
`final void` | `wait()` Causes the current thread to wait until another thread invokes the `notify()` method or the `notifyAll()` method for this object.

## Constants

### STATEMENT_ABORT

    public static final int STATEMENT_ABORT

One of the values returned by `getSqlStatementType(java.lang.String)`.

Constant Value: 6 (0x00000006)

### STATEMENT_ATTACH

    public static final int STATEMENT_ATTACH

One of the values returned by `getSqlStatementType(java.lang.String)`.

Constant Value: 3 (0x00000003)

### STATEMENT_BEGIN

    public static final int STATEMENT_BEGIN

One of the values returned by `getSqlStatementType(java.lang.String)`.

Constant Value: 4 (0x00000004)

### STATEMENT_COMMIT

    public static final int STATEMENT_COMMIT

One of the values returned by `getSqlStatementType(java.lang.String)`.

Constant Value: 5 (0x00000005)

### STATEMENT_DDL

    public static final int STATEMENT_DDL

One of the values returned by `getSqlStatementType(java.lang.String)`.

Constant Value: 8 (0x00000008)

### STATEMENT_OTHER

    public static final int STATEMENT_OTHER

One of the values returned by `getSqlStatementType(java.lang.String)`.

Constant Value: 99 (0x00000063)

### STATEMENT_PRAGMA

    public static final int STATEMENT_PRAGMA

One of the values returned by `getSqlStatementType(java.lang.String)`.

Constant Value: 7 (0x00000007)

### STATEMENT_SELECT

    public static final int STATEMENT_SELECT

One of the values returned by `getSqlStatementType(java.lang.String)`.

Constant Value: 1 (0x00000001)

### STATEMENT_UNPREPARED

    public static final int STATEMENT_UNPREPARED

One of the values returned by `getSqlStatementType(java.lang.String)`.

Constant Value: 9 (0x00000009)

### STATEMENT_UPDATE

    public static final int STATEMENT_UPDATE

One of the values returned by `getSqlStatementType(java.lang.String)`.

Constant Value: 2 (0x00000002)

## Public constructors

### DatabaseUtils

    public DatabaseUtils ()

## Public methods

### appendEscapedSQLString

    public static void appendEscapedSQLString (StringBuilder sb,
                    String sqlString)

Appends an SQL string to the given StringBuilder, including the opening and closing single quotes. Any single quotes internal to sqlString will be escaped. This method is deprecated because we want to encourage everyone to use the "?" binding form. However, when implementing a ContentProvider, one may want to add WHERE clauses that were not provided by the caller. Since "?" is a positional form, using it in this case could break the caller because the indexes would be shifted to accomodate the ContentProvider's internal bindings. In that case, it may be necessary to construct a WHERE clause manually. This method is useful for those cases.

Parameters
`sb` | `StringBuilder`: the StringBuilder that the SQL string will be appended to
`sqlString` | `String`: the raw string to be appended, which may contain single quotes

### appendSelectionArgs

    public static String[] appendSelectionArgs (String[] originalValues,
                    String[] newValues)

Appends one set of selection args to another. This is useful when adding a selection argument to a user provided set.

Parameters
`originalValues` | `String`
`newValues` | `String`

Returns
`String[]` |

### appendValueToSql

    public static final void appendValueToSql (StringBuilder sql,
                    Object value)

Appends an Object to an SQL string with the proper escaping, etc.

Parameters
`sql` | `StringBuilder`
`value` | `Object`

### bindObjectToProgram

    public static void bindObjectToProgram (SQLiteProgram prog,
                    int index,
                    Object value)

Binds the given Object to the given SQLiteProgram using the proper typing. For example, bind numbers as longs/doubles, and everything else as a string by call toString() on it.

Parameters
`prog` | `SQLiteProgram`: the program to bind the object to
`index` | `int`: the 1-based index to bind at
`value` | `Object`: the value to bind

### blobFileDescriptorForQuery

    public static ParcelFileDescriptor blobFileDescriptorForQuery (SQLiteStatement prog,
                    String[] selectionArgs)

Utility method to run the pre-compiled query and return the blob value in the first column of the first row.

Parameters
`prog` | `SQLiteStatement`
`selectionArgs` | `String`

Returns
`ParcelFileDescriptor` | A read-only file descriptor for a copy of the blob value.

### blobFileDescriptorForQuery

    public static ParcelFileDescriptor blobFileDescriptorForQuery (SQLiteDatabase db,
                    String query,
                    String[] selectionArgs)

Utility method to run the query on the db and return the blob value in the first column of the first row.

Parameters
`db` | `SQLiteDatabase`
`query` | `String`
`selectionArgs` | `String`

Returns
`ParcelFileDescriptor` | A read-only file descriptor for a copy of the blob value.

### concatenateWhere

    public static String concatenateWhere (String a,
                    String b)

Concatenates two SQL WHERE clauses, handling empty or null values.

Parameters
`a` | `String`
`b` | `String`

Returns
`String` |

### createDbFromSqlStatements

    public static void createDbFromSqlStatements (Context context,
                    String dbName,
                    int dbVersion,
                    String sqlStatements)

Creates a db and populates it with the sql statements in sqlStatements.

Parameters
`context` | `Context`: the context to use to create the db
`dbName` | `String`: the name of the db to create
`dbVersion` | `int`: the version to set on the db
`sqlStatements` | `String`: the statements to use to populate the db. This should be a single string of the form returned by sqlite3's `.dump` command (statements separated by semicolons)

### cursorDoubleToContentValues

    public static void cursorDoubleToContentValues (Cursor cursor,
                    String field,
                    ContentValues values,
                    String key)

Reads a Double out of a field in a Cursor and writes it to a Map.

Parameters
`cursor` | `Cursor`: The cursor to read from
`field` | `String`: The REAL field to read
`values` | `ContentValues`: The `ContentValues` to put the value into
`key` | `String`: The key to store the value with in the map

### cursorDoubleToContentValuesIfPresent

    public static void cursorDoubleToContentValuesIfPresent (Cursor cursor,
                    ContentValues values,
                    String column)

Reads a Double out of a column in a Cursor and writes it to a ContentValues. Adds nothing to the ContentValues if the column isn't present or if its value is null.

Parameters
`cursor` | `Cursor`: The cursor to read from
`values` | `ContentValues`: The `ContentValues` to put the value into
`column` | `String`: The column to read

### cursorDoubleToCursorValues

    public static void cursorDoubleToCursorValues (Cursor cursor,
                    String field,
                    ContentValues values)

Reads a Double out of a field in a Cursor and writes it to a Map.

Parameters
`cursor` | `Cursor`: The cursor to read from
`field` | `String`: The REAL field to read
`values` | `ContentValues`: The `ContentValues` to put the value into

### cursorFloatToContentValuesIfPresent

    public static void cursorFloatToContentValuesIfPresent (Cursor cursor,
                    ContentValues values,
                    String column)

Reads a Float out of a column in a Cursor and writes it to a ContentValues. Adds nothing to the ContentValues if the column isn't present or if its value is null.

Parameters
`cursor` | `Cursor`: The cursor to read from
`values` | `ContentValues`: The `ContentValues` to put the value into
`column` | `String`: The column to read

### cursorIntToContentValues

    public static void cursorIntToContentValues (Cursor cursor,
                    String field,
                    ContentValues values,
                    String key)

Reads a Integer out of a field in a Cursor and writes it to a Map.

Parameters
`cursor` | `Cursor`: The cursor to read from
`field` | `String`: The INTEGER field to read
`values` | `ContentValues`: The `ContentValues` to put the value into, with the field as the key
`key` | `String`: The key to store the value with in the map

### cursorIntToContentValues

    public static void cursorIntToContentValues (Cursor cursor,
                    String field,
                    ContentValues values)

Reads an Integer out of a field in a Cursor and writes it to a Map.

Parameters
`cursor` | `Cursor`: The cursor to read from
`field` | `String`: The INTEGER field to read
`values` | `ContentValues`: The `ContentValues` to put the value into, with the field as the key

### cursorIntToContentValuesIfPresent

    public static void cursorIntToContentValuesIfPresent (Cursor cursor,
                    ContentValues values,
                    String column)

Reads a Integer out of a column in a Cursor and writes it to a ContentValues. Adds nothing to the ContentValues if the column isn't present or if its value is null.

Parameters
`cursor` | `Cursor`: The cursor to read from
`values` | `ContentValues`: The `ContentValues` to put the value into
`column` | `String`: The column to read

### cursorLongToContentValues

    public static void cursorLongToContentValues (Cursor cursor,
                    String field,
                    ContentValues values,
                    String key)

Reads a Long out of a field in a Cursor and writes it to a Map.

Parameters
`cursor` | `Cursor`: The cursor to read from
`field` | `String`: The INTEGER field to read
`values` | `ContentValues`: The `ContentValues` to put the value into
`key` | `String`: The key to store the value with in the map

### cursorLongToContentValues

    public static void cursorLongToContentValues (Cursor cursor,
                    String field,
                    ContentValues values)

Reads a Long out of a field in a Cursor and writes it to a Map.

Parameters
`cursor` | `Cursor`: The cursor to read from
`field` | `String`: The INTEGER field to read
`values` | `ContentValues`: The `ContentValues` to put the value into, with the field as the key

### cursorLongToContentValuesIfPresent

    public static void cursorLongToContentValuesIfPresent (Cursor cursor,
                    ContentValues values,
                    String column)

Reads a Long out of a column in a Cursor and writes it to a ContentValues. Adds nothing to the ContentValues if the column isn't present or if its value is null.

Parameters
`cursor` | `Cursor`: The cursor to read from
`values` | `ContentValues`: The `ContentValues` to put the value into
`column` | `String`: The column to read

### cursorRowToContentValues

    public static void cursorRowToContentValues (Cursor cursor,
                    ContentValues values)

Read the entire contents of a cursor row and store them in a ContentValues.

Parameters
`cursor` | `Cursor`: the cursor to read from.
`values` | `ContentValues`: the `ContentValues` to put the row into.

### cursorShortToContentValuesIfPresent

    public static void cursorShortToContentValuesIfPresent (Cursor cursor,
                    ContentValues values,
                    String column)

Reads a Short out of a column in a Cursor and writes it to a ContentValues. Adds nothing to the ContentValues if the column isn't present or if its value is null.

Parameters
`cursor` | `Cursor`: The cursor to read from
`values` | `ContentValues`: The `ContentValues` to put the value into
`column` | `String`: The column to read

### cursorStringToContentValues

    public static void cursorStringToContentValues (Cursor cursor,
                    String field,
                    ContentValues values,
                    String key)

Reads a String out of a field in a Cursor and writes it to a Map.

Parameters
`cursor` | `Cursor`: The cursor to read from
`field` | `String`: The TEXT field to read
`values` | `ContentValues`: The `ContentValues` to put the value into, with the field as the key
`key` | `String`: The key to store the value with in the map

### cursorStringToContentValues

    public static void cursorStringToContentValues (Cursor cursor,
                    String field,
                    ContentValues values)

Reads a String out of a field in a Cursor and writes it to a Map.

Parameters
`cursor` | `Cursor`: The cursor to read from
`field` | `String`: The TEXT field to read
`values` | `ContentValues`: The `ContentValues` to put the value into, with the field as the key

### cursorStringToContentValuesIfPresent

    public static void cursorStringToContentValuesIfPresent (Cursor cursor,
                    ContentValues values,
                    String column)

Reads a String out of a column in a Cursor and writes it to a ContentValues. Adds nothing to the ContentValues if the column isn't present or if its value is null.

Parameters
`cursor` | `Cursor`: The cursor to read from
`values` | `ContentValues`: The `ContentValues` to put the value into
`column` | `String`: The column to read

### cursorStringToInsertHelper

    public static void cursorStringToInsertHelper (Cursor cursor,
                    String field,
                    DatabaseUtils.InsertHelper inserter,
                    int index)

Reads a String out of a field in a Cursor and writes it to an InsertHelper.

Parameters
`cursor` | `Cursor`: The cursor to read from
`field` | `String`: The TEXT field to read
`inserter` | `DatabaseUtils.InsertHelper`: The InsertHelper to bind into
`index` | `int`: the index of the bind entry in the InsertHelper

### dumpCurrentRow

    public static void dumpCurrentRow (Cursor cursor,
                    StringBuilder sb)

Prints the contents of a Cursor's current row to a StringBuilder.

Parameters
`cursor` | `Cursor`: the cursor to print
`sb` | `StringBuilder`: the StringBuilder to print to

### dumpCurrentRow

    public static void dumpCurrentRow (Cursor cursor,
                    PrintStream stream)

Prints the contents of a Cursor's current row to a PrintSteam.

Parameters
`cursor` | `Cursor`: the cursor to print
`stream` | `PrintStream`: the stream to print to

### dumpCurrentRow

    public static void dumpCurrentRow (Cursor cursor)

Prints the contents of a Cursor's current row to System.out.

Parameters
`cursor` | `Cursor`: the cursor to print from

### dumpCurrentRowToString

    public static String dumpCurrentRowToString (Cursor cursor)

Dump the contents of a Cursor's current row to a String.

Parameters
`cursor` | `Cursor`: the cursor to print

Returns
`String` | a String that contains the dumped cursor row

### dumpCursor

    public static void dumpCursor (Cursor cursor,
                    PrintStream stream)

Prints the contents of a Cursor to a PrintSteam. The position is restored after printing.

Parameters
`cursor` | `Cursor`: the cursor to print
`stream` | `PrintStream`: the stream to print to

### dumpCursor

    public static void dumpCursor (Cursor cursor)

Prints the contents of a Cursor to System.out. The position is restored after printing.

Parameters
`cursor` | `Cursor`: the cursor to print

### dumpCursor

    public static void dumpCursor (Cursor cursor,
                    StringBuilder sb)

Prints the contents of a Cursor to a StringBuilder. The position is restored after printing.

Parameters
`cursor` | `Cursor`: the cursor to print
`sb` | `StringBuilder`: the StringBuilder to print to

### dumpCursorToString

    public static String dumpCursorToString (Cursor cursor)

Prints the contents of a Cursor to a String. The position is restored after printing.

Parameters
`cursor` | `Cursor`: the cursor to print

Returns
`String` | a String that contains the dumped cursor

### getCollationKey

    public static String getCollationKey (String name)

return the collation key

Returns
`String` | the collation key

### getHexCollationKey

    public static String getHexCollationKey (String name)

return the collation key in hex format

Returns
`String` | the collation key in hex format

### getSqlStatementType

    public static int getSqlStatementType (String sql)

Returns one of the following which represent the type of the given SQL statement.

1. `STATEMENT_SELECT`
2. `STATEMENT_UPDATE`
3. `STATEMENT_ATTACH`
4. `STATEMENT_BEGIN`
5. `STATEMENT_COMMIT`
6. `STATEMENT_ABORT`
7. `STATEMENT_OTHER`

Parameters
`sql` | `String`: the SQL statement whose type is returned by this method

Returns
`int` | one of the values listed above

### longForQuery

    public static long longForQuery (SQLiteDatabase db,
                    String query,
                    String[] selectionArgs)

Utility method to run the query on the db and return the value in the first column of the first row.

Parameters
`db` | `SQLiteDatabase`
`query` | `String`
`selectionArgs` | `String`

Returns
`long` |

### longForQuery

    public static long longForQuery (SQLiteStatement prog,
                    String[] selectionArgs)

Utility method to run the pre-compiled query and return the value in the first column of the first row.

Parameters
`prog` | `SQLiteStatement`
`selectionArgs` | `String`

Returns
`long` |

### queryNumEntries

    public static long queryNumEntries (SQLiteDatabase db,
                    String table,
                    String selection)

Query the table for the number of rows in the table.

Parameters
`db` | `SQLiteDatabase`: the database the table is in
`table` | `String`: the name of the table to query
`selection` | `String`: A filter declaring which rows to return, formatted as an SQL WHERE clause (excluding the WHERE itself). Passing null will count all rows for the given table

Returns
`long` | the number of rows in the table filtered by the selection

### queryNumEntries

    public static long queryNumEntries (SQLiteDatabase db,
                    String table,
                    String selection,
                    String[] selectionArgs)

Query the table for the number of rows in the table.

Parameters
`db` | `SQLiteDatabase`: the database the table is in
`table` | `String`: the name of the table to query
`selection` | `String`: A filter declaring which rows to return, formatted as an SQL WHERE clause (excluding the WHERE itself). Passing null will count all rows for the given table
`selectionArgs` | `String`: You may include ?s in selection, which will be replaced by the values from selectionArgs, in order that they appear in the selection. The values will be bound as Strings.

Returns
`long` | the number of rows in the table filtered by the selection

### queryNumEntries

    public static long queryNumEntries (SQLiteDatabase db,
                    String table)

Query the table for the number of rows in the table.

Parameters
`db` | `SQLiteDatabase`: the database the table is in
`table` | `String`: the name of the table to query

Returns
`long` | the number of rows in the table

### readExceptionFromParcel

    public static final void readExceptionFromParcel (Parcel reply)

Special function for reading an exception result from the header of a parcel, to be used after receiving the result of a transaction. This will throw the exception for you if it had been written to the Parcel, otherwise return and let you read the normal result data from the Parcel.

Parameters
`reply` | `Parcel`: Parcel to read from

See also:

- `Parcel.writeNoException()`
- `Parcel.readException()`

### readExceptionWithFileNotFoundExceptionFromParcel

    public static void readExceptionWithFileNotFoundExceptionFromParcel (Parcel reply)

Parameters
`reply` | `Parcel`

Throws
`FileNotFoundException` |

### readExceptionWithOperationApplicationExceptionFromParcel

    public static void readExceptionWithOperationApplicationExceptionFromParcel (Parcel reply)

Parameters
`reply` | `Parcel`

Throws
`OperationApplicationException` |

### sqlEscapeString

    public static String sqlEscapeString (String value)

SQL-escape a string.

Parameters
`value` | `String`

Returns
`String` |

### stringForQuery

    public static String stringForQuery (SQLiteDatabase db,
                    String query,
                    String[] selectionArgs)

Utility method to run the query on the db and return the value in the first column of the first row.

Parameters
`db` | `SQLiteDatabase`
`query` | `String`
`selectionArgs` | `String`

Returns
`String` |

### stringForQuery

    public static String stringForQuery (SQLiteStatement prog,
                    String[] selectionArgs)

Utility method to run the pre-compiled query and return the value in the first column of the first row.

Parameters
`prog` | `SQLiteStatement`
`selectionArgs` | `String`

Returns
`String` |

### writeExceptionToParcel

    public static final void writeExceptionToParcel (Parcel reply,
                    Exception e)

Special function for writing an exception result at the header of a parcel, to be used when returning an exception from a transaction. exception will be re-thrown by the function in another process

Parameters
`reply` | `Parcel`: Parcel to write to
`e` | `Exception`: The Exception to be written.

See also:

- `Parcel.writeNoException()`
- `Parcel.writeException(Exception)`

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